Block-mold.



F. J. McGUIRE.

.BLOCK MOLD.

APPLICATION FILED OCT. 14. 19x4.

Patented Dec. 7, 1915.

2 SHEETS-SHEET 1.

F. J. McGUlRE.

BLOCK MOLD.

APPLICATION FILED OCT. 14- 1914.

1,163,248 Patented Dec.7,1915.

2 SHEETS-SHEET 2 wuzum COLUMBIA PLANouRAPH {IO-,WASHINGTON. D. c.

UNITE snares arnnr rrc FRANK .r, MCGUIRE, or NORFOLK, VIRGINIA.

BLOCK-MOLD.

Specification of Letters Patent.

Patented Dec. 7, 1915.

Application filed October 14, 1914. Serial No. 866,629.

shown and described in reissued Letters-- Patent No. 18,673, issued January 18, 1914 to John Scott Banks.

One aim of the invention is to construct the mold in such manner that the blocks may be made by the poured concrete process so that the finished blocks will be dense and strong.

Another aim of the invention is to so con struct the mold that the blocks may be rapidly and readily formed and without likelihood of flaws occurring therein. I

Another aim of the inventionis to pro,- vide a mold for the purpose stated, so constructed that it may be'made at a low cost and may be built up toprovide for the manufacture of any desired number of the blocks at one operation;

In the accompanying drawings :Figure 1 is a perspective view of the mold embodying the present invention. Fig. 2 is a vertical transverse sectional view therethrough. Fig. 3 is a vertical longitudinal sectional view through one end of the mold. Fig. 4 is a top plan view of the mold. Fig. 5 is a perspective view of one of the cores removed from the mold. Fig. 6 is an end elevation of the core shown in Fig. 5. Fig. 7 is a perspective view of the block formedby the use of the mold.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawings by the same reference characters.

As illustrated in the drawings, the mold comprises a plurality of cores which are assembled between side members and which cores and side members rest in their assembled relation upon a pallet forming the base of the mold. The pallet isindicated by the numeral 1 and maybe of any desired length and width and may be supported in any suitable manner, either stationary or for movement to permit of the discharge of blocks fromthe mold after they have become properly set.

Referring to Fig. 7 of the drawings, it will be observedthat' the block to be formed within the mold embodying the present invention includes a body a of rectangular form and fiat sided and from the face of which block projects substantially wedgeshaped lugs b. Inasmuch as this block and the use to which it isput is fully illustrated and described in the above-mentioned patent, such description and illustration is not deemed necessary herein.

As before stated, the mold embodying the present invention includes-spaced side mem bers and cores which are disposed between the side members and upon the palletl. Each'of the side members comprises a plate 2 which is of any desired length and height, depending, in the first instance, upon the number of blocks to be formed at one operation, and, in the second instance, upon the length of the lugs 12, and each plate is bent upon a line parallel to its upper edge to form a laterally horizontally extending flange 8 and is thence bent to form a vertically extending flange 4. The plates comprising the sides of the mold may be supported in upright position upon thepallet 1 by any suitable means, and, in the drawings, the lower edge portions of the plates are illustrated as fitting in grooves 5 formed in the upper surface of the pallet boards. By reference to Figs. 1 and 2 of the drawings it will be observed that the flanges 3 of'the two plates occupy a common horizontal plane and that they project away pose to be presently explained, the flanges 4 I of the side plates are formed at intervals with vertically extending relatively narrow notches or slots 6 which open at the upper edge of the said flange.

The core sections which are assembled between the sides of the mold are, in the presentinstance, of three different forms, which, when assembled in a manner to be presently explained, provide for the formation of the blocks of the shape shown inFig. 7. All of the several core sections are preferably formed from stout sheet metal and certain of the sections, shown clearly in Figs. 1 and 3, comprise each a connecting portion 7 which, in the assembled position of the section, occupies a horizontal plane, and the said section further includes spaced sides 8 which are located in planes diverging in a downward direction, these side portions 8 being integral with the opposite sides of the connecting portion or top 7. The said con necting portion or top 7 and the sides 8 are so proportioned that the end edges thereof will abut against the opposing faces of the plates 2 comprising the sides of the mold, and the upper surface of the top or connecting portion will occupy the same plane as the upper sides of the flanges 3, as clearly shown in Fig. 3 of the drawings. For convenience in describing the arrangement of the several core sections, one of the sections, above described, is indicated in general by the reference letter A and another of the sections is indicated in general by the reference letter B and the third by the reference letter C.

Each core section B is formed from a sheet metal blank folded at a point midway between its ends to form a two-ply flange or division piece 9 which extends transversely medially of the top of the section which is indicated at 10, the top being formed by extending the portions of the blank at opposite sides of the flange 9 in opposite directions in a horizontal plane. For a purpose which will be presently made apparent, and as clearly shown in Fig. of the drawings, the division piece 9 projects at 35] its ends, as at 11, beyond the end edges of the top or connecting portion 10. The sides 12 are integral with the opposite side edges of the top and project downwardly in diverging planes, as in the case of the sides 8 of the core section A. Each of the core sections C comprises a top 13 formed at one side edge with an upstanding flange 14 which 00- cupies a vertical plane at right angles to the plane of the said top 13 and each of these sections further includes a side 15 which is inclined downwardly from the other side edge of the said top 13. The flange 14, as clearly shown in Fig. 1 of the drawings, has its ends projecting, as at 16, beyond the end edges of the top 13.

By referring to the drawings it will be ob served that one of the core sections C is to be disposed at each end of the mold and consequently between adjacent ends of the sides 2 with the projecting ends 16 of the flange 14 seating in the notches 6 in the flanges 4. After this core section has been placed in position, as stated, and with the lower edge of its side 15 resting upon the upper surface of the pallet board 1, one of the core sections A is disposed between the sides 2 in the position shown in Figs. 1 and 3 of the drawings, the lower edges of the sides 8 of the said core section resting upon the pallet board. One of the core sections B is next disposed in the position shown in Figs. 1 and 3, and with the lower edges of its sides 12 resting upon the surface of the pallet board and with the projecting ends 11 of'its flange or division piece 9 seating in the notches 6 in the flanges 4. The engagement of the ends of the flanges 9 and 14 in the notches in the flanges 4, serves, of course, to restrain the core sections B and C respectively against displacement longitudinally between the sides 2 of the mold, and it will of course be understood that the core section A is to be centered between the sides 12 and 15 of the said sections B and C. By reference now to Fig. 3, it will be apparent that the flanges 9 and 14, the plates 2 and their flanges 3 and 4, and the connecting portion and sides of the several core sections, together with the surface of the pallet board, form a mold, the interior of which is of a contour corresponding to the exterior surface of the block shown in Fig. 7 It will further be apparent that any number of the sections A and B may be arranged between two of the sections C, depending upon the number of blocks it is desired to form at one operation, and of course in the formation of the blocks the concrete or other mixture, in a plastic state, is poured into the several molds and struck ofl at the surface and then allowed to set. After the blocks have become properly set, they may be discharged from the mold in any of the various ways well known in the art. It will of course be understood that the side plates 2 may be held against spreading or bulging by any suitable means.

Having thus described the invention, what is claimed as new is 1. In a mold of the class described, spaced side plates having oppositely projecting lateral flanges terminating in upstanding flanges, and core sections disposed between the side plates and having top portions located substantially in a plane with the lateral flanges and provided with means whereby they may be supported from said lateral flanges.

2. In a mold of the class described, a pallet, side plates having lateral oppositely proj ecting flanges terminating in upstanding flanges, the upstanding flanges being provided at intervals with notches, and core sections assembled between the side plates with their lower edges upon the pallet and having division pieces seated upon said lateral flanges and engaging the said notches.

3. In a mold of the class described, side plates having lateral oppositely pro-jecting flanges terminating in upstanding flanges,

the upstanding flanges being provided at intervals with notches, and core sections assembled between the side plates and having flat tops disposed in the same plane as the lateral flanges, inclined sides depending from the tops between the side plates, and 2%:-

division pieces extending transversely of the tops of the core sections and over said lateral flanges and engaging the notches in the upstanding flanges.

4:. In a mold of the class described, a pallet, sheet metal side plates rising from the pallet and having their upper portions bent to form outwardly projecting horizontal flanges and vertical flanges rising from the outer edges of said horizontal flanges, and

sheet metal core sections assembled between the side plates and having flat top portions in the sameplane'as the horizontal flanges of the side plates and having sides depending from the transverse edges of said top portions to rest upon the pallet, the alternate core sections having transverse division pieces rising from their flattops and projecting beyond their longitudinal edges over the horizontal flanges of the side plates to engage the vertical flangesthereon.

5. In a mold of the class described, spaced sides, and a core section to be assembled between the sides formed from a sheet metal blank folded between its ends to form a plane top, an upstanding division piece ex tending transversely of the top and sides depending from transverse edges of the said top.

6. In a mold of the class described, a pallet, spaced side plates thereon, core sections disposed between the side plates and provided with plane tops and upstandingdivie sion pieces upon their tops, and a core section assembled between the first-mentioned core sections and having aplane top, the tops of all the sectionsbeing in a common plane below the upper edges of the side plates and all the core sections having divergingsides resting on the pallet.

In testimony whereof I affix my signature in presence of two witnesses. FRANK J. MoGUIRE. [1 s.]

l Vitnesses:

PHILIP B. MosER, M. ANDERSON.

Copies of this patent may be obtained for five cents each, .byaddre ssing the Commissioner of Patents,

Washington, D. G." 

